Apparatus for cutting and welding metals.



P. EIIVIANN.

APPARATUS FOR CUTTING AND WELDING METALS. APPLICATION FILED JAN-28. I9I5.

LP. EIMANN. APPARATUS FOR CUTTING AND WELDING METALS. APPLICATION FILED JAN- 28. T915.

PatentedNov. 30, 1915.

I a SHEETS-SHEET 2. Z9 y 4,

f P. EIMANN. APPARATUS FOR CAUTTING AND WELDING METALS.

l APPLICATION FILED lAN.28. i915. I Lw?, A msnm 1m30, 1915.

A 3 SHEETS-SHEET 3.

l lines along the rail.-

PETER EIMANN, 0F PETROGRAD, RUSSIA.

FFIC.

APPARATUS FOR CUTTING AND WELDING METALS.

To all ywhom z't may concern.'

Be it known that I, PETER EIMANN, subject of the Emperor of Russia, and resident of Petrograd, in Russia, practical engineer have invented a new and' useful Improvement in Apparatus for Cuttin and Welding Metals, of which the fol owing' is a specication.

This invention relates to apparatusl for cutting and welding metals along curvedby means of an Oxy-hydrogen, oxyacetylene, or other like burner, the improvements comprising, among other features, a guiding rail capable ofbeing curved, to the desired contour, a carriage carrying the burner and fitted 'to run upon said rail, and means for causing the carriage to -travel en, iron or steel is cut by means of an Oxy-hydrogen, Oxy-acetylene, or vother burner it is often necessary to unite these metals again or divide them along variable curved lines in diii'erent planes. For the success of this operation the burner must be placed at an accurately determined distance from the about with a suitable uniform. speed. When this work is done by hand it is very diiicultA to fulfil these conditions and in all ca ses it demands very experienced workmanship.

The present'invention provides an appa,

ratus which allows the burner to be maintained and guided alon any curved line according to the require conditions.

' struction, arrangement and combination of parts as hereinafter fully described, illustrated in the drawings and specifically pointed out in the appended claims.

In the drawings: Fi ure 1 represents a longitudinal section of t e apparatus onthe line A-B-C-D of Fig. 2. Fig. 2 is a top plan view. Fig. 2is a right end elevation of the parts as seen in Fig. 2. Fig. 3 is a Y front or left end view of the apparatus, the

- of the device on aA guide rail.

plan view oi" a portion of a a strip of soft metal presse 8 is a cross-section of said rail.

Specification of Letters Patent.

work and it.must be moved e invention consists in the novel con- 4 isl a detail' arranged in the groove 19 Patenten Nev. so, iaia.

Application ledJanuary 28, 1915. Serial No. 4,973.

1 0` are plan and perspective views respectively lhereinafter specifically referred to.

he apparatus is carried on. a rail l, of lead or other soft metal adapted to be easily bent pr curved in the desired direction and applied erated on, where it is by means of any suitable clamping arrangement to prevent it moving.

vA carriage 8 of the. apparatus is fitted to move along the rail l on rollers 2, 3, 4, 5 and 1 4 which run in grooves 6 cut in the rail on opposite sides thereof. These grooves may have any suitable sha e.' The carriage 8 comprises two longitudinal members or beams 35, a transverse beam 36, and a longitudinally slidable base member 13 adapted to be moved back and forth within slots 12 in the said members 35. The carriage 8 carries all the other operative elements of thev machine and is caused to travel along the rail l'by means now to be described.

6 indicates a sharp-toothed wheel mounted on a shaft 19 which is rotatably mounted in a supportingmember or beam 13. The beam 13x is slidinglymounted vwithin slots 45 in standards 45 secured to the base member 13 presently described, so that said beam and the parts carried thereby may be raised and lowered. When the beam 13x issuiiiciently lowered, the toothed wheel 6 will engage with the upper face of the rail 1 and when the beam 13X is raised, said wheel 6 will free said rail. The carriage 8 with the'parts supported thereby is adapted to be moved along the rail l by imparting rotation to the wheel 6 after the latter has been lowered into position to engage said Irail, and I provide gearing for rotating the wheel 6, said gearing comprising a toothed gear wheel 18 mounted on shaft 19 and meshing with a toothed gear wheel 17 on stud shaft 37 carried by beam 13", and which gear wheel 17 gears with a toothed gear wheel 16 mounted on a shaft 38. The latter also carries a toothed gear wheel 15 with which meshes a worm wheel 14X mounted on a shaft 19 rotatably mounted in the fork of an arm 19a which is adapted for vertical adjustment upon the upright portion 19c of the beam 13x and adapted to be secured in adjusted position bv means of a clamping bolt 19b which passes through the arm '19' and engages a block 19d slidingly formed between lies a reduced portion 38 of the shaft when the said gear wheel is in proper position on said shaft. By .operating the latch so as to free the portion 38 of the shaft,

the gear wheel 15 may be slipped o of said shaft. A stud 15 on the gear wheel15' 'is adapted to engage the rear face of the latch so as to frictionally hold'the latter in its locking position.

by reason of the direction,

travel 1n a directlon When the shaft 19 is turned in one direction the wheel 6 will be rotated through themedia of the worm wheel 14x, and gear wheels 15', 16', 17, 18 and the carriage 8 with the parts supported thereby is caused to travel 1n one direction along the rail 1.

sharp teeth of wheel 6 biting somewhat into the surface of the rail. When the shaft 19 is rotated'in the opposite the carriage will be caused to the reverse of that first mentioned.

order that-the wheel 6 may be caused, to blte suiciently deep into the upper face ofthe rail 1 to effect the movement of the carriage along said rail when said wheel 6 is rotated, as above described, I provide a spiral spring 7 which encircles a vertical rod carriedby the beam 13x. The lower end of 'saidspring bears against the beam 13x at a point above the wheel 6, and the upper v`end of the spring bears against the lower end of a sleeveV 41. The latter is threaded. exteriorlyland screws within an .interiorly threaded sleeve 7? slidingly mounted within a collar integral with the uprights 45 fxedly secured by bolts 45 to the base mem' ber 13 of the carriage, which member at its longitudinal edges its slidingly within grooves 12 on the inner sides'of the longi# v'tudinal beams 35 of the carriage.

By screwing down the sleeve 41, the tension of the spring is increased, and the wheel 6 thereby causedto bite more or less deeply into the rail .1. After the wheel 6 hasbeen caused to engage the rail 1 and is under the. stress of the spring 7, said wheel should be locked in that'position, otherwise owing to the tension which has been given to the spring by the screwing down of theV sleeve 41, said spring would'act to force the parts .upwardly and carry the wheel 6 out of enga ment with rail 1. I therefore provide a king arrangement sien more clearly in i Fig. 10, comprising two lugs 46 on the sleeve 7*, which lugs, when -the sleeve 7 is rotated by arms or handles A48 secured to the 'upper"-eud adapted4 to engage beneath will be held is detachably mounted the spring causes the bar 9. be moved in two angular pieces 47 secured to the collar 45 on the uprights 45. When the lugs are engaged beneath the pieces 47',v the wheel 6 against the rail 1, but when the sleeve 7x is rotated about a quarter of a turn the lugs 46 will be freed from pieces 47, as seen in Fig. 10, and the sleeves 7x, 41, and Spring may be lifted, thus freeing the beam 13x from the pressure of the spring, and said beam, together with the parts supported thereby, i. e. the various gear wheels and wheel 6 may be raised .to thus cause said Wheel 6 to free the rail. A leaf spring 90 is secured at its lower end by a screw 91 to the beam 13x and is provided toward its upper end with an aperture 93 adapted to receive a stud 92 on one of the standards 45 when the beam 13x and parts supported thereby have been raised suiiiciently high to enable the stud 92 to enter said aperture. When this has foccurred the parts will be held in elevated position until it is desired to lower the beam and parts carried thereby to enable the;wheel 6 to engage `the rail 1. By pressing the upper end of the spring outwardly to freethe stud the beam, etc., will drop into a position with the wheel 6 engagingrail 1. The sleeve 41 is provided with arms 48 by which said sleeve may be readily rotated to vary the stress of the spring.

The two supporting rollers 2 and 4 are mounted directly in horizontal forks 50 carried by vertical brackets 51 secured to the longitudinal members 35 ol the carriage. The two supporting rollers 3 and 5 are mounted directly 'in horizontal forks -39 carried by vertical brackets 73 secured to sa"L longitudinal bars 9 slidably- 'mountedwithbeadjusted longitudinally to cause them to move toward the rail 1 and engage within the lateral grooves therein, or to cause said rollers to move away from the rail out of engagement with said grooves, I vide the ars 9 with laterally-extending lugs 9 through which loosely pass non-rotatable threaded shafts 10x secured within arms 11' carried by the transverse member 36 of the carriage. -A spiral spring 10 encircles each of the shaftslO, one end of eachspring bearing against a lug 9 and the other end bearing-against a nut 52 threaded on shaft 10. .By rotating the nut in one or the other direction the tension of the spring 10 may be varied as desired. Upon each shaft 10x prois threaded a nut 26 by turning which in I groove in rail 1 and engatge therein. the nut 26 isturned in 'e other direction-.-

^ said bar 9 to be moved toward the lateral When* ist a direction to cause the roller carried thereby to move away from and out of the groove in rail l.

The roller 14 is mounted o n the lower end of a vertical shaftI 52 which passes loosely through a block 53 which can slide back and forth in a slot 53X in the base member 13. y means vof an adjusting screw 55 which at one end engages the block and whose other endy projects beyond the transverse member 36 of the carriage, and carries a milled head or nut 55, the block and with it the shaft 52 and roller 14 may be shifted to cause the said roller to 'engage within the grooves 6 of rail 1, when said screw 55 is turned in one direction, and when the screw is turned in the opposite direction the block, shaft 52 and roller 14 will be shifted to cause the said roller to free the grooves.

carrying roller 14 being loosely mounted in ,block 53, said shaft and roller may move upwardly and downwardly according to different curvatures of the rail. A spiral spring 27 encircles the shaft 52 and bears at one end against a nut 53 threaded on the upper end of said shaft and at the other end against the block 53. Thus the roller 14 will' be held in the grooves of rail 1` more or less firmly owing to the stress of the said spring 27. The tension of the spring may be varied b v manipulating the nut 53.

The slidable base member -13 carries two standards 18 which have arms 17 against which bears one end of spiral springs 15 encircling rods 16 mounted in the` arms 17 and arms 11. Nuts 16 are mounted on threaded portions 41,y ofl the rods 16 and against which nutslthe other end of the springs 15 bears. By adjusting the nuts upon the shafts the tension of the said springs may be varied. The said springs operate to keep the base member (with the parts supported thereby) under a yielding pressure in a direction to the left as viewed 1n Figs. 1 and 2.

The adjusting screw 55`is threaded with'- in a non-rotatable sleeve which at one end is fixedly secured to a plate 60 bolted to the base member 13 and whose opposite end passes freely through the transverse member 36 ofthe carriage. 'The sleeve 60 is exteriorly threaded as at 61 and carries a nut 62 having arms 63 whereby the nut may be readily rotated upon the sleeve. nut is turned tothe right it against the transverse member 36 of the carriage and ycause the rod to move toward the right as viewed in Figs. 1 and 2, and thus carry along withsit the -member 13 and the parts supported thereby, including the various gear wheels and wheel 6, which latter in said shifting movement of the member '13 will slide across the upper face of rail 1 until it is in the proper position there- By reason of the shaft 52.

over, when the rotation of nut 62 is discontinued. 1

Should it be desired to shift the member 13 in the opposite direction, i. e. toward the left-as viewed in Figs. 1 and2, the nut 62 is turned toward the left and the tension of the springs 15 exerted upon the standards 18 will cause the member 13 and parts thereon to be moved to the left, the extent of movement being determinedy by the extent to which the nut 62 is adjusted to the right on its sleeve 60.

Any suitable burner and holder therefor may be carried 'by the device and I have shown a burner 25 carried by an arm 23x projecting from a plate 23 `which is slidably mounted between four guiding rollers 22 mounted on a plate or holder 21 pivotally supported on a transverse rod 20 by means of a pivot stud 21. The4 rod 20 forms part of a frame which comprises also longitudinal members 20 and transverse member 20x which vvarious vmembers are slidably mounted in the standards 18 on base member 13. 24 is a roller at the lower end of plate 20, 20, 20x longitudinally to thereby vary the position of the burner relatively to the work, I provide a threaded rod 80which is threaded through the member 20x and turns freely at its inner end in a crossiece 81 joining two of the standards 18.

y turning the rod 80 to the right the frame and the burner supported thereby will be shifted toward the right as viewed in Figs. 1 and 2, and when the rod 80 is turned to the left, said frame and `burner will be shifted to the left.

With my apparatus the cutting of metal may be effected in straight lines as well as .in all kinds of curved lines, on straight, curved or spherical surfaces, which are concave or convex, in horizontal, inclined and vertical positions. For work in a straight Vline and for lrge quantities of special steel or cast iron rails 1 wlth shaped parts, lead or other soft metal 2Gy pressed into a longitudinal groove 50y are used (see Figs. 7 andl 8). Such rails Suder less from falling, blows and careless handling in general than those made entirely of soft metal, and will serve for'a very long time.

What I claim is:

1. In an apparatus of the character described, the combination with a guiding rail provided with grooves in its sides, cfaJ carriage running Von said rail, wheels on said carriageengaging, with said grooves, a toothed Wheel carried by said carriage and adapted toengage with the said rail, gearing for operating the said toothed wheel, and a burner carried by the carriage.

2. In an apparatus of thecharacter described the combination with a guiding rail provided with grooves in its sides, and an 23. For adjusting the frame insert ofsot metal carried by said rail, of

' wheel, gearing a carriage running on said rail, wheels on said carriage and engaging' with -sald grooves, a toothed wheel carried by said carriage and adapted to engage with the said insert, gearing'for operating the said toothed Wheel, and a burner carried by the carriage.

3. In an apparatus of the character described, the combination with a guiding rail provided with grooves in itssides, of a carriage running on said rail, Wheels Von said carriage engaging in said grooves, a toothed Wheel carried by said carriage and adapted to engage with the said rail, means for exerting downward pressure upon said toothed Jfor operating the toothed Wheel, and a burner carried by the carriage.

4. vIn an apparatus of the character described, the combination with a guidingrail provided with grooves in its sides, of a carriage running on said rail., wheels on said carriage engaging with said grooves, a toothed Wheel adapted to engage with said i rail, a support movably mounted on the carriage and supporting said toothed wheel, a spring exerting pressure upon said support, gearing -or' operating the toothed Wheel, and a burner carried by the carriage. 5. In an apparatus of the character described the combination with a guiding rail, Vof a carriage running upon said rail, a 1ongtudinally shiftable frame mounted on said carriage, a burner pivotally carried by said frame, and means for shifting the said frame to vary the position of the burner;

6. In an apparatus of the character described the combination with a (guiding rail,

of a carriage running upon sai rail, a 1ongltudinally shiftable frame comprising 1onstandaids on the carriage in which said 1ongitndinalv members are slidably mounted, a threaded rod screwing within one of the with said grooves,

said transverse members, and a burner pivotally carried by the other transverse member of the frame;

7. In an apparatus of the character described the combination with a guiding rail provided withgrooves in its sides, cfa carriage adapted to travel upon said rail, wheels' on said carriage engaging with said grooves, a toothed Wheel adapted to engage with the upper face of the rali, a support in which said Wheel is mounted, and a spring port. l

8. In an apparatus of the character described the combination with a guiding rail provided in its sides with grooves, of a carriage adapted to 'travel upon said rail,v wheels on said carriage adapted to engage a toothed Wheel adapted to engage with the'upper face of the rail, a support in which said wheel is mounted, a sprmg arranged to exert pressure upon said support, and means for varying the stress of the spring.

9. In an apparatus of the character described. the combination with a rail having grooves in its sides, of a carriage adaptedto travel upon said rail and comprising a slidingly-arranged member, wheels on said carriage engagmg with said grooves, a toothed wheel adapted to engage the upper face of the rail, a support for said Wheel mounted on said lidable member of Ithe carriage, gearing mounted upon said support and adapted to eiect the rotation of said toothed wheel, and means slidable member of the carriage.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

PETER EIMANN.

Witnesses:

A. N. TscHnxALoFF,

H. A. LovIAoUINE.

6 arranged .to exert pressure upon said supfor adjusting the said 

